English Grammar - Spelling

English Grammar
English Grammar - Spelling

Spot the correct spelling of an electron-transport protein.


Options:

  1. Cytocrome
  2. Cytocrhome
  3. Cytochrome
  4. Cytohrome

Right Answer: Cytochrome

The word in question refers to a heme-containing protein involved in electron transport within the mitochondrial respiratory chain. The correct spelling is 'Cytochrome', derived from the Greek roots 'cyto' (cell) and 'chroma' (colour), referring to the coloured pigment nature of these proteins. 'Cytocrome' incorrectly omits the 'h' after 'c', 'Cytocrhome' misplaces the 'r' and 'h', and 'Cytohrome' also has the letters transposed incorrectly. Only 'Cytochrome' follows the correct letter sequence c-h-r-o-m-e. Therefore, the correct spelling is Cytochrome, making option 3 the correct answer.

This question is part of English Grammar - Spelling, which has 13 practice questions with answers.

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